Sealed wire roll and method of making same



Dec. 26, 1933. M NN 1,941,098

SEALED WIRE ROLL AND METHOD OF MAKING SAME Filed Aug. 22, 1951 Inventor Paul L. Mann Patented D... 26,1933

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'ca-go, 111.; a' corporation "pffl llinois Application August 22, 1931. semi 'NbIss'Sjzz'v 3 Claims. v(o1. 2oc 59) wound into a coil of such a number and size of convolutions that the ends of the length lie closely My invention relates to a sealed wire roll and method of making same. I

Heretofore it has been common practise to market rolls or coils of wirewith the ends un- "I connected and lying loosely along the coil. In many instances a definite length of wire of definite size and specifications is required. In accordance with the general features of this invention, the ends of a coil of a measured length 210 and size of wire are sealed together to insure 7 against short sales and the seal may be provided with indicia to indicate the size and kind of wire in the roll. v 7

An object of the invention is to provide a new and improved method and device for marketing wire rolls. V p

A further object is to provide a device for insuring the presence of a definite length of wire in a coil. I A'further object is to provide means for insuring that the wire is in the condition it was when leaving the manufacturer.

A further object is to provide a device for preventing the fraying of the ends of the wire.

Other objects and advantages will appear as the description proceeds. Y

Referring to the drawing, Fig. 1 is a perspective view of a roll of wire embodying my inven tion;

. 130. Fig. 2 is an enlarged detail view of the seal or the ends of the roll applied to a stranded conductor, and

Fig. 3 is a view similar to Fig. 2 showing the seal applied to a conductor covered with vibratic L insulating material.

In many cases it is desirable to use a very definite length of wire, for instance, in aerials for radio receiving sets a definite length of aerial is usually prescribed by the manufacturer of the set. 4

40 A definite length of wire is also required for winding induction or transformer coils which must have a given diameter and number of turns. For resistance elements the amount of resistance in a wound resistance element can be predetermined by using a definite length of wire of known resistance per unit length.'

When wire is sold by weight or approximate number of feet, it is customary for the retailerto unwind the approximate amount of wire re- 60.1quired from a large roll. Thisis extremely unsatisfactory in many instances, requiring that all of the measurements of length, resistance, etc. be made by the purchaser. In accordance with the features of the present invention, the wire is cut 55..in a measured predetermined length and then is 'to fall adjacent each other.

vto the ends of the wires, the seal also prevents shown applied to a conductor having a fabric in- SEALED'gWIRE'iROLL AND METHOD OF 1 MAKINGSAMEQ1- hpo ia d, 11 1.," "ass t to Consoli -f' Associated Corporations, Chi-f k adjacent each other. It is not essential that all of the convolutions be of the same diameter. The

roll may be wound in several layers, and by prop-' erly relating the average diameter of the convolutions to the length of wire, the ends may be made After a, roll 5 has been wound in thismanner, a seal 6 preferably of 'a relatively soft metal such as lead or any other suitable material is applied to the ends '7 of the conductor. This seal is preferably provided with indicia to indicate the length, size, resistance, or any other characteristic which may be important in the particular roll, so that the purchaser will be provided with definite accurate information in regard to the characteristics which he is interested in; In addition to insuring that the length and other characteristics of the wire are fixed and predetermined the seal 6 forms a mechanical support for the ends of the wire and prevents them from extending away from the roll, where theymay injure persons handling the roll or be themselves damaged. By applying the seal close the unravelling or fraying of the ends of a stranded conductor. Experience has shown that in many instances the ends of a stranded conductor are so badly damaged and the individual strands so badly bent, that it is impossible to rearrange them into circular stranded form, making it necessary to cut off and waste the ends of the wire.

Fig. 2 illustrates the seal applied to the ends of a bare stranded conductor. In Fig. 3 the seal is sulating cover. In many cases the insulation of this type of conductor unless properly protected becomes so badly frayed that the end of the conductor cannot be used.

The invention lendsitself admirably to carrying out the policy of accuracy and dependability inline with the trend of modern merchandising methods. When a roll such as roll 5 has been wound, a pair of bands 8 of adhesive paper or other suitable material is applied to diametrically opposite sides of the roll. It has been found that when the ends of the conductors are inter-con nected'this forms a suflicient support for retain- 7 ing the roll in annular form and holding the convolutions of the wire together;

It willbe understood that the nature and embodiment of the invention herein described and illustrated is merely a convenient and useful form of an invention, and that many changes and modifications may be made therein without secured to said ends to insure the presence of av definite length and to prevent the fraying of the ends of the wire. a

2. A roll of stranded wire, with said roll comprising a plurality of convolutions and of a predetermined length, the length of the wire and diameter of the convolutions being so proportioned that the two ends of the wire fall adjacent each other in overlapping relation, and a seal of soft metal having an opening therein for receiving the ends of the wire with the seal adapted to be clamped to the ends of the wire to insure a definite length of the same, and to prevent the fraying of the ends of the stranded wire.

3. A method of putting up stranded wire which may fray at the ends which method consists of selecting a definite length of wire, winding said length into convolutions of such size and number that the ends terminate adjacent each other in overlapping relation, applying a seal of relatively soft metal over said ends to secure the ends in fixed relationship and to prevent fraying of the wire, and placing indicia on the seal to indicate the size and character of the wire.

PAUL L. MANN. 

